What is the inverse function of zip in python?

Question

I've used the `zip` function from the Numpy library to sort tuples and now I have a list containing all the tuples. I had since modified that list and now I would like to restore the tuples so I can use my data. How can I do this?

Accepted Answer

```
lst1, lst2 = zip(*zipped_list)
```

should give you the unzipped list.

`*zipped_list` unpacks the zipped_list object. it then passes all the tuples from the zipped_list object to zip, which just packs them back up as they were when you passed them in.

so if:

```
a = [1,2,3]
b = [4,5,6]
```

then `zipped_list = zip(a,b)` gives you:

```
[(1,4), (2,5), (3,6)]
```

and `*zipped_list` gives you back

```
(1,4), (2,5), (3,6)
```

zipping that with `zip(*zipped_list)` gives you back the two collections:

```
[(1, 2, 3), (4, 5, 6)]
```

What is the inverse function of zip in python?

Solution

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